Abstract
Mastering the second language, Czech in our case, is crucial for children of migrants, so that among other things they can integrate into the education process. To adjust the language teaching to the pupils' needs, it is necessary to identify what language skills, or individual competences within the frame of the communicative competence, should be developed.
For this purpose, a new diagnostic test for the lower graders and upper graders of primary schools was designed. Although it is not a high-stakes test, it is essential to ensure its validity, reliability, practicality as well as its positive impact on the teaching process, the pupils, their teachers and the society.
This paper presents the diagnostic tool, documents the qualities of the measurement device and outlines its further development.